Waste Water Engineering If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is 200 ppm 50 ppm 150 ppm 100 ppm 200 ppm 50 ppm 150 ppm 100 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the over land flow from the critical point to the drain is 8 km and the difference in level is 12.4 m, the inlet time is 4 hours 3 hours 5 hours 2 hours 4 hours 3 hours 5 hours 2 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The suitable cross-section of sewers to carry combined flow, is Horse shoe shaped Egg shaped Rectangular Circular Horse shoe shaped Egg shaped Rectangular Circular ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In the activated sludge process Aeration is continued till stability Aeration is done with an admixture of previously aerated sludge Water is removed by centrifugal action Sludge is activated by constant stirring Aeration is continued till stability Aeration is done with an admixture of previously aerated sludge Water is removed by centrifugal action Sludge is activated by constant stirring ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 3.0 to 4.0 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.5 to 4.5 m/sec 3.0 to 4.0 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.5 to 4.5 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settlement of a particle in sedimentation tank, is affected by Velocity of flow Size and shape of solid All listed here Viscosity of water Velocity of flow Size and shape of solid All listed here Viscosity of water ANSWER DOWNLOAD EXAMIANS APP
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